Hey its Jc, I have a 350 bored to a 360 with a mild cam, headers, HEI, and stock heads. There a 650 Double Pumper for sale for $100 and i'm not sure if double pumper work that good.(cause they have mechanical secondaries and what not) do they work good and if so would it work good on my engine? Also one day I'm going to put aluminum heads and a supercharger will it work for that combo too? Thanks

A double pumper is the last thing you need on a street engine, they are for racing purposes only. For street use nothing beats a vac secondary carb. It will deliver decent gas mileage compared to the double pumper and the performance differential is minimal.

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